Related Experiment Video
Updated: May 3, 2026

05:37
Experimental Model of Ligature-Induced Peri-Implantitis in Mice
Published on: May 17, 2024
3.5K
Clinical and Radiographic Evaluation of Success Rate with MTA Plug in Open Apices
Pari Ghaziani1, Akbar Fallah Rastegar1, Maryam Bidar1
1Department of Endodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
Iranian Endodontic Journal
|February 5, 2014
Summary
Mineral trioxide aggregate (MTA) effectively seals open apices in necrotic teeth, leading to high clinical and radiographic success rates. This endodontic treatment offers a promising alternative for single-appointment procedures.
Area of Science:
- Endodontic treatment
- Dental materials science
- Regenerative endodontics
Background:
- Necrotic teeth with incomplete root formation pose treatment challenges.
- Traditional therapies like calcium hydroxide require multiple appointments.
- A single-appointment treatment forming an immediate apical barrier is desirable.
Purpose of the Study:
- To evaluate the clinical and radiographic success of using mineral trioxide aggregate (MTA) as an apical plug.
- To assess MTA's efficacy in necrotic teeth with open apices.
Main Methods:
- 41 necrotic anterior teeth with open apices in 35 patients (8-16 years) were treated.
- Root canals were disinfected with calcium hydroxide, followed by MTA apical plugging.
- Teeth were obturated with guttapercha and restored with composite.
Main Results:
- 97.6% of teeth showed no clinical symptoms at 3 months, and 100% at 6 months.
- Radiographically, 41.5% of lesions reduced and 24.4% disappeared at 3 months.
- At 6 months, 51.2% of lesions reduced and 41.5% disappeared, showing significant improvement.
Conclusions:
- Mineral trioxide aggregate (MTA) is effective as an apical plug in teeth with open apices.
- MTA facilitates successful endodontic treatment following root canal disinfection.
- Further research with longer follow-up periods is recommended.

